├── LICENSE ├── Mechanical ├── BrtBase.stl ├── BrtCover.stl ├── BrtPiezoActuator.stl ├── BrtStrapBuckle.stl ├── FrontPanelOverlay.pdf ├── HousingBase.stl ├── HousingCover.stl └── PotKnobs.stl ├── README.md └── Software ├── USBPolygraphArduino └── USBPolygraphArduino.ino └── USBPolygraphDesktop ├── Modules install.bat ├── Sample exam file.txt ├── Sample questions file.txt ├── USBPolygraphGUI113.py ├── USBPolygraphLogic113.py ├── heart_beep.wav └── logo.png /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /Mechanical/BrtBase.stl: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Juan-Gg/USB_Polygraph/7efd55b1525010ad65d42b49fb37ec8cf92fdbc2/Mechanical/BrtBase.stl -------------------------------------------------------------------------------- /Mechanical/BrtCover.stl: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Juan-Gg/USB_Polygraph/7efd55b1525010ad65d42b49fb37ec8cf92fdbc2/Mechanical/BrtCover.stl -------------------------------------------------------------------------------- /Mechanical/BrtPiezoActuator.stl: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Juan-Gg/USB_Polygraph/7efd55b1525010ad65d42b49fb37ec8cf92fdbc2/Mechanical/BrtPiezoActuator.stl -------------------------------------------------------------------------------- /Mechanical/BrtStrapBuckle.stl: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Juan-Gg/USB_Polygraph/7efd55b1525010ad65d42b49fb37ec8cf92fdbc2/Mechanical/BrtStrapBuckle.stl -------------------------------------------------------------------------------- /Mechanical/FrontPanelOverlay.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Juan-Gg/USB_Polygraph/7efd55b1525010ad65d42b49fb37ec8cf92fdbc2/Mechanical/FrontPanelOverlay.pdf -------------------------------------------------------------------------------- /Mechanical/HousingBase.stl: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Juan-Gg/USB_Polygraph/7efd55b1525010ad65d42b49fb37ec8cf92fdbc2/Mechanical/HousingBase.stl -------------------------------------------------------------------------------- /Mechanical/HousingCover.stl: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Juan-Gg/USB_Polygraph/7efd55b1525010ad65d42b49fb37ec8cf92fdbc2/Mechanical/HousingCover.stl -------------------------------------------------------------------------------- /Mechanical/PotKnobs.stl: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Juan-Gg/USB_Polygraph/7efd55b1525010ad65d42b49fb37ec8cf92fdbc2/Mechanical/PotKnobs.stl -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # USB_Polygraph 2 | This is a USB Polygraph, which I designed and built as a classroom project on June 2018. 3 | The hardware side is pretty simple, an Arduino UNO collects data from some sensors and 4 | sends it via serial. On the computer, a Python program takes that data and not only graphs 5 | it, but it also allows the user to save it, manages questions and adds question and answer 6 | markers to the graphs so results can later be inspected. All results are saved in .txt files. 7 | Two sample files are provided, a questions file and an exam file. The exam file can be opened 8 | and visualized from the Python program. 9 | 10 | Find more information here: https://juangg-projects.blogspot.com/2019/06/usb-polygraph.html 11 | 12 | Note: 13 | I could not get the polygraph aplication running because pyqtgraph gave some random error when importing it, a workaorund is found here: 14 | 15 | https://developercommunity.visualstudio.com/content/problem/1207405/fmod-after-an-update-to-windows-2004-is-causing-a.html 16 | 17 | Installing an older version of numpy fixes it: pip install numpy==1.19.3 18 | -------------------------------------------------------------------------------- /Software/USBPolygraphArduino/USBPolygraphArduino.ino: -------------------------------------------------------------------------------- 1 | /********************************************************** 2 | USB POLYGRAPH ARDUINO FIRMWARE VERSION 1 3 | First released to the public on MAY 2019 4 | Written by JuanGg on JUNE 2018 5 | https://juangg-projects.blogspot.com/ 6 | This work is licensed under GNU General Public License v3.0 7 | ***********************************************************/ 8 | 9 | /********************************************************** 10 | Takes readings from A0 (brt), A1 (gsr) and A2 (hrt) 11 | four times a second, averages them and sends the formated 12 | values (0000, 0000, 0000) through the serial port to a 13 | python program that graphs them. A0 and A1 are reversed 14 | before sending as their sensors work backwards. 15 | **********************************************************/ 16 | 17 | 18 | #define led 13 19 | bool transmit = false; 20 | unsigned long prevMillis = 0; 21 | 22 | int A0readings[4]; 23 | int A1readings[4]; 24 | int A2readings[4]; 25 | int readingsIndex = 0; 26 | 27 | 28 | 29 | void setup() 30 | { 31 | Serial.begin(115200); 32 | pinMode(led,OUTPUT); 33 | pinMode(A0, INPUT); 34 | pinMode(A1, INPUT); 35 | pinMode(A2, INPUT); 36 | 37 | } 38 | 39 | void loop() 40 | { 41 | int data=Serial.read(); 42 | switch(data) 43 | { 44 | case '0': 45 | digitalWrite(led,LOW); 46 | transmit = false; 47 | break; 48 | case '1': 49 | digitalWrite(led,HIGH); 50 | transmit = true; 51 | break; 52 | } 53 | 54 | unsigned long currentMillis = millis(); 55 | if(currentMillis - prevMillis >= 25) 56 | { 57 | prevMillis = currentMillis; 58 | if(readingsIndex == 3) 59 | { 60 | if(transmit) 61 | { 62 | Serial.print("("); 63 | print_fmt(map((A0readings[0] + A0readings[1] + A0readings[2] + A0readings[3])/4, 0, 1023, 1023, 0)); 64 | Serial.print(", "); 65 | print_fmt(map((A1readings[0] + A1readings[1] + A1readings[2] + A1readings[3])/4, 0, 1023, 1023, 0)); 66 | Serial.print(", "); 67 | print_fmt((A2readings[0] + A2readings[1] + A2readings[2] + A2readings[3])/4); 68 | Serial.println(")"); 69 | } 70 | readingsIndex = 0; 71 | } 72 | else 73 | { 74 | readingsIndex ++; 75 | } 76 | A0readings[readingsIndex] = analogRead(A0); 77 | A1readings[readingsIndex] = analogRead(A1); 78 | A2readings[readingsIndex] = analogRead(A2); 79 | } 80 | 81 | 82 | } 83 | 84 | void print_fmt(int num) 85 | { 86 | if(num == 0) 87 | Serial.print("0000"); 88 | else if(num<10) 89 | { 90 | Serial.print("000"); 91 | Serial.print(num); 92 | } 93 | else if(num<100) 94 | { 95 | Serial.print("00"); 96 | Serial.print(num); 97 | } 98 | else if(num<1000) 99 | { 100 | Serial.print("0"); 101 | Serial.print(num); 102 | } 103 | else 104 | Serial.print(num); 105 | } 106 | 107 | 108 | 109 | -------------------------------------------------------------------------------- /Software/USBPolygraphDesktop/Modules install.bat: -------------------------------------------------------------------------------- 1 | pip3 install pyserial 2 | pip3 install pyqt5 3 | pip3 install pyqtgraph -------------------------------------------------------------------------------- /Software/USBPolygraphDesktop/Sample exam file.txt: -------------------------------------------------------------------------------- 1 | ----Exam file---- 2 | Includes brt, gsr & hrt data, and position & label of questions and answers 3 | [642, 644, 646, 647, 644, 639, 639, 627, 610, 600, 600, 601, 605, 611, 619, 627, 677, 732, 752, 770, 798, 825, 825, 811, 802, 794, 782, 770, 762, 754, 734, 710, 697, 694, 693, 688, 686, 687, 696, 701, 698, 693, 689, 688, 684, 682, 679, 670, 657, 643, 633, 625, 612, 602, 600, 601, 604, 608, 611, 610, 610, 613, 617, 620, 622, 633, 649, 670, 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Do you inted to answer truthfully to all the questions asked?', '2. Is today Tuesday?', '3. Are we in the month of June?', '4. Are we in Canada?'][68, 129, 230, 394, 508]['YES', 'NO', 'YES', 'YES', 'EXAM END'] -------------------------------------------------------------------------------- /Software/USBPolygraphDesktop/Sample questions file.txt: -------------------------------------------------------------------------------- 1 | Test Question File - Other relevant info 2 | ---------More relevant info/blanc line--------- 3 | 1. Do you inted to answer truthfully to all the questions asked? 4 | 2. Is today Tuesday? 5 | 3. Are we in the month of June? 6 | 4. Are we in Canada? 7 | -------------------------------------------------------------------------------- /Software/USBPolygraphDesktop/USBPolygraphGUI113.py: -------------------------------------------------------------------------------- 1 | ''' 2 | ********************************************************** 3 | USB POLYGRAPH SOFTWARE VERSION 1.13 - GUI (2/2) 4 | First released to the public on MAY 2019 5 | Written by JuanGg on JUNE 2018 6 | https://juangg-projects.blogspot.com/ 7 | This work is licensed under GNU General Public License v3.0 8 | *********************************************************** 9 | ''' 10 | # Import modules 11 | import sys 12 | 13 | from PyQt5 import QtWidgets, QtGui 14 | from PyQt5.QtWidgets import * 15 | import pyqtgraph as pg 16 | 17 | 18 | # MainWindow class 19 | class MainWindow(QtWidgets.QWidget): 20 | 21 | # Class constructor 22 | def __init__(self): 23 | super().__init__() 24 | print("Initializing gui...", end="") 25 | 26 | self.vbox1_width = 120 27 | self.vbox3_width = 100 28 | 29 | # Initialize all widgets and layouts 30 | self.init_hbox1() 31 | self.init_vbox1() 32 | self.init_vbox2() 33 | self.init_vbox3() 34 | self.init_hbox2() 35 | self.init_hbox3() 36 | self.init_vbox4() 37 | 38 | self.setLayout(v_box4) 39 | 40 | # Name of the window 41 | self.setWindowTitle("USB Polygraph Software - V.1.13 - Juan Gg") 42 | 43 | self.show() 44 | 45 | print("OK") 46 | 47 | def init_vbox1(self): # Left side buttons menu. 48 | self.logo_lbl = QtWidgets.QLabel() 49 | self.logo_lbl.setPixmap(QtGui.QPixmap("logo.png")) 50 | 51 | self.help_btn = QtWidgets.QPushButton("Help") 52 | 53 | self.ser_start_btn = QtWidgets.QPushButton("Start") 54 | self.ser_stop_btn = QtWidgets.QPushButton("Stop") 55 | 56 | self.load_qtns_btn = QtWidgets.QPushButton("Load question set") 57 | 58 | self.new_exam_btn = QtWidgets.QPushButton("New exam") 59 | self.open_exam_btn = QtWidgets.QPushButton("Open exam") 60 | 61 | self.exam_advance_btn = QtWidgets.QPushButton(">") 62 | self.exam_reverse_btn = QtWidgets.QPushButton("<") 63 | 64 | # Organize widgets in labeled groups. 65 | serialGb = QGroupBox("Connection") 66 | serialVBox = QVBoxLayout() 67 | serialVBox.addLayout(h_box1) 68 | serialVBox.addWidget(self.ser_connect_btn) 69 | serialVBox.addWidget(self.ser_start_btn) 70 | serialVBox.addWidget(self.ser_stop_btn) 71 | serialGb.setLayout(serialVBox) 72 | 73 | newExamGb = QGroupBox("Record Exam") 74 | newExamVBox = QVBoxLayout() 75 | newExamVBox.addWidget(self.new_exam_btn) 76 | newExamVBox.addWidget(self.load_qtns_btn) 77 | newExamGb.setLayout(newExamVBox) 78 | 79 | openExamGb = QGroupBox("Open Exam") 80 | openExamVBox = QVBoxLayout() 81 | openExamVBox.addWidget(self.open_exam_btn) 82 | openExamVBox.addWidget(self.exam_advance_btn) 83 | openExamVBox.addWidget(self.exam_reverse_btn) 84 | openExamGb.setLayout(openExamVBox) 85 | 86 | serialGb.setFixedWidth(self.vbox1_width) 87 | openExamGb.setFixedWidth(self.vbox1_width) 88 | newExamGb.setFixedWidth(self.vbox1_width) 89 | 90 | global v_box1 91 | v_box1 = QtWidgets.QVBoxLayout() 92 | v_box1.addWidget(self.logo_lbl) 93 | self.logo_lbl.setMaximumWidth(self.vbox1_width) 94 | self.logo_lbl.setMaximumHeight(self.vbox1_width * 1.5) 95 | v_box1.addWidget(self.help_btn) 96 | 97 | v_box1.addWidget(serialGb) 98 | v_box1.addWidget(newExamGb) 99 | v_box1.addWidget(openExamGb) 100 | 101 | def init_vbox2(self): # Graphs 102 | self.brt_plot = pg.PlotWidget() 103 | self.gsr_plot = pg.PlotWidget() 104 | self.hrt_plot = pg.PlotWidget() 105 | 106 | global v_box2 107 | v_box2 = QtWidgets.QVBoxLayout() 108 | v_box2.addWidget(self.brt_plot) 109 | v_box2.addWidget(self.gsr_plot) 110 | v_box2.addWidget(self.hrt_plot) 111 | 112 | def init_vbox3(self): # Right side menu & displays. 113 | self.brt_scale_btn = QtWidgets.QPushButton("Reset Scale") 114 | self.gsr_scale_btn = QtWidgets.QPushButton("Reset Scale") 115 | self.hrt_scale_btn = QtWidgets.QPushButton("Reset Scale") 116 | 117 | self.hrt_beep_btn = QtWidgets.QPushButton("Beep ON") 118 | 119 | self.brt_lcd = QLCDNumber(self) 120 | self.gsr_lcd = QLCDNumber(self) 121 | self.hrt_lcd = QLCDNumber(self) 122 | 123 | self.brt_lcd.setSegmentStyle(2) 124 | self.gsr_lcd.setSegmentStyle(2) 125 | self.hrt_lcd.setSegmentStyle(2) 126 | 127 | # Organize widgets in labeled groups. 128 | bpmGb = QGroupBox("BPM") 129 | bpmVBox = QVBoxLayout() 130 | bpmVBox.addWidget(self.brt_lcd) 131 | bpmVBox.addWidget(self.brt_scale_btn) 132 | bpmGb.setLayout(bpmVBox) 133 | 134 | gsrGb = QGroupBox("GSR") 135 | gsrVBox = QVBoxLayout() 136 | gsrVBox.addWidget(self.gsr_lcd) 137 | gsrVBox.addWidget(self.gsr_scale_btn) 138 | gsrGb.setLayout(gsrVBox) 139 | 140 | ppmGb = QGroupBox("PPM") 141 | ppmVBox = QVBoxLayout() 142 | ppmVBox.addWidget(self.hrt_lcd) 143 | ppmVBox.addWidget(self.hrt_beep_btn) 144 | ppmVBox.addWidget(self.hrt_scale_btn) 145 | ppmGb.setLayout(ppmVBox) 146 | 147 | bpmGb.setFixedWidth(self.vbox3_width) 148 | gsrGb.setFixedWidth(self.vbox3_width) 149 | gsrGb.setFixedWidth(self.vbox3_width) 150 | 151 | global v_box3 152 | v_box3 = QtWidgets.QVBoxLayout() 153 | 154 | v_box3.addWidget(bpmGb) 155 | v_box3.addWidget(gsrGb) 156 | v_box3.addWidget(ppmGb) 157 | 158 | def init_vbox4(self): # Contains everything. 159 | global v_box4 160 | v_box4 = QtWidgets.QVBoxLayout() 161 | v_box4.addLayout(h_box2) 162 | v_box4.addLayout(h_box3) 163 | 164 | def init_hbox1(self): # Contains port label and line edit. 165 | self.port_lbl = QtWidgets.QLabel("Port:") 166 | self.port_name_le = QtWidgets.QLineEdit() 167 | self.ser_connect_btn = QtWidgets.QPushButton("Connect") 168 | 169 | global h_box1 170 | h_box1 = QtWidgets.QHBoxLayout() 171 | h_box1.addWidget(self.port_lbl) 172 | h_box1.addWidget(self.port_name_le) 173 | self.port_lbl.setMaximumWidth(self.vbox1_width * 0.2) 174 | self.port_name_le.setMaximumWidth(self.vbox1_width * 0.8) 175 | 176 | def init_hbox2(self): # Contains left & riht menu and graphs 177 | global h_box2 178 | h_box2 = QtWidgets.QHBoxLayout() 179 | h_box2.addLayout(v_box1) 180 | h_box2.addLayout(v_box2) 181 | h_box2.addLayout(v_box3) 182 | 183 | def init_hbox3(self): # Contains question label and time lcd 184 | f1 = QtGui.QFont("Default", 16) 185 | f2 = QtGui.QFont("Default", 32) 186 | 187 | self.question_lbl = QtWidgets.QLabel("No questions loaded") 188 | self.sec_min_lbl = QtWidgets.QLabel(":") 189 | self.question_lbl.setFont(f1) 190 | self.sec_min_lbl.setFont(f2) 191 | 192 | self.min_lcd = QLCDNumber(self) 193 | self.sec_lcd = QLCDNumber(self) 194 | 195 | self.sec_lcd.setSegmentStyle(2) 196 | self.min_lcd.setSegmentStyle(2) 197 | 198 | self.sec_lcd.setDigitCount(2) 199 | self.min_lcd.setDigitCount(2) 200 | 201 | self.sec_lcd.setMinimumHeight(50) 202 | self.sec_lcd.setMaximumWidth(80) 203 | self.sec_min_lbl.setMaximumWidth(10) 204 | self.min_lcd.setMaximumWidth(80) 205 | 206 | qtnGb = QGroupBox("Question") 207 | qtnHBox = QHBoxLayout() 208 | qtnHBox.addWidget(self.question_lbl) 209 | qtnGb.setLayout(qtnHBox) 210 | 211 | timeGb = QGroupBox("Time") 212 | timeHBox = QHBoxLayout() 213 | timeHBox.addWidget(self.min_lcd) 214 | timeHBox.addWidget(self.sec_min_lbl) 215 | timeHBox.addWidget(self.sec_lcd) 216 | timeGb.setLayout(timeHBox) 217 | 218 | timeGb.setFixedWidth(200) 219 | 220 | global h_box3 221 | h_box3 = QtWidgets.QHBoxLayout() 222 | 223 | h_box3.addWidget(qtnGb) 224 | h_box3.addWidget(timeGb) 225 | 226 | 227 | # Enable the gui to be run by itself if needed & make the code reusable 228 | 229 | if __name__ == "__main__": 230 | app = QtWidgets.QApplication(sys.argv) 231 | window = MainWindow() 232 | sys.exit(app.exec_()) 233 | -------------------------------------------------------------------------------- /Software/USBPolygraphDesktop/USBPolygraphLogic113.py: -------------------------------------------------------------------------------- 1 | ''' 2 | ********************************************************** 3 | USB POLYGRAPH SOFTWARE VERSION 1.13 - LOGIC (1/2) 4 | First released to the public on MAY 2019 5 | Written by JuanGg on JUNE 2018 6 | https://juangg-projects.blogspot.com/ 7 | This work is licensed under GNU General Public License v3.0 8 | *********************************************************** 9 | ''' 10 | # Import modules 11 | import serial 12 | import os 13 | import sys 14 | from PyQt5 import QtWidgets 15 | import pyqtgraph as pg 16 | from pyqtgraph.Qt import QtCore 17 | from PyQt5.QtCore import Qt 18 | 19 | from PyQt5.QtWidgets import QFileDialog, QMessageBox 20 | 21 | import winsound 22 | 23 | from USBPolygraphGUI113 import MainWindow 24 | 25 | 26 | class PolygraphLogic(MainWindow): 27 | def __init__(self): 28 | 29 | MainWindow.__init__(self) 30 | print("Initializing logic...", end="") 31 | 32 | self.demo_mode() 33 | self.set_defaults() 34 | self.initialize_graphs() 35 | self.reset_graphs() 36 | self.reset_exam_variables() 37 | self.reset_qtn_ans_markers() 38 | self.set_btn_functions() 39 | 40 | print("OK") 41 | 42 | # ################################################################# 43 | # SETUP FUNCTIONS # 44 | # ################################################################# 45 | 46 | def demo_mode(self): # Display real-time data without recording. 47 | self.record_exam_data = False 48 | self.acquisition_mode = True 49 | self.view_exam_mode = False 50 | 51 | def exam_mode(self): # Displays real-time data and records it. 52 | self.record_exam_data = True 53 | self.acquisition_mode = True 54 | self.view_exam_mode = False 55 | 56 | def view_mode(self): # Displays data being read from a n exam file. 57 | self.record_exam_data = False 58 | self.acquisition_mode = False 59 | self.view_exam_mode = True 60 | 61 | def set_defaults(self): # Set initial values. 62 | # Port 63 | self.port_name_le.setText("com8") 64 | # LCDs 65 | self.min_lcd.display(00) 66 | self.sec_lcd.display(00) 67 | # Graphs 68 | self.graphs_length = 600 69 | self.graph_running = False 70 | # Rate calculations: 71 | self.hrt_was_below_th = True 72 | self.hrt_prev_above = 0 73 | self.hrt_last_above = 0 74 | self.hrt_prev_rates = [0] * 10 75 | 76 | self.brt_was_below_th = False 77 | self.brt_prev_above = 0 78 | self.brt_last_above = 0 79 | 80 | # Sounds 81 | self.hrt_sound = False 82 | 83 | # Graphs question and ans markers. 84 | self.brt_qtn_reg = [] 85 | self.gsr_qtn_reg = [] 86 | self.hrt_qtn_reg = [] 87 | 88 | self.brt_ans_lin = [] 89 | self.gsr_ans_lin = [] 90 | self.hrt_ans_lin = [] 91 | 92 | def reset_graphs(self): # Clears all data from graphs. 93 | self.time_pos = 0 94 | self.brt_data = [0] * self.graphs_length 95 | self.gsr_data = [0] * self.graphs_length 96 | self.hrt_data = [0] * self.graphs_length 97 | self.plot_data([0, 0, 0], True) 98 | 99 | def reset_qtn_ans_markers(self): # Removes all question and answer markers from graphs. 100 | 101 | for i in range(len(self.brt_qtn_reg)): 102 | self.brt_plot.removeItem(self.brt_qtn_reg[i]) 103 | self.gsr_plot.removeItem(self.gsr_qtn_reg[i]) 104 | self.hrt_plot.removeItem(self.hrt_qtn_reg[i]) 105 | for j in range(len(self.brt_ans_lin)): 106 | self.brt_plot.removeItem(self.brt_ans_lin[j]) 107 | self.gsr_plot.removeItem(self.gsr_ans_lin[j]) 108 | self.hrt_plot.removeItem(self.hrt_ans_lin[j]) 109 | 110 | self.brt_qtn_reg = [] 111 | self.gsr_qtn_reg = [] 112 | self.hrt_qtn_reg = [] 113 | 114 | self.brt_ans_lin = [] 115 | self.gsr_ans_lin = [] 116 | self.hrt_ans_lin = [] 117 | 118 | self.num_qtns = 0 119 | self.start_qtn_pos = 0 120 | 121 | self.qtn_asked = False 122 | self.qtn_being_asked = False 123 | self.ans_answered = True 124 | 125 | self.accept_questions = False 126 | 127 | self.qtns_file_name = '' 128 | self.qtns_loaded = False 129 | self.qtns_list = [] 130 | 131 | def reset_exam_variables(self): # Erases all previous recorded data. 132 | self.exam_file_name = '' 133 | 134 | self.exam_brt_data = [] 135 | self.exam_gsr_data = [] 136 | self.exam_hrt_data = [] 137 | 138 | self.exam_qtn_markers_start = [] 139 | self.exam_qtn_markers_end = [] 140 | self.exam_qtn_markers_lbl = [] 141 | 142 | self.exam_answer_markers_pos = [] 143 | self.exam_answer_markers_lbl = [] 144 | 145 | def initialize_graphs(self): # Defines graphs sizes, colours, etc. 146 | self.brt_data = [0] * self.graphs_length 147 | self.gsr_data = [0] * self.graphs_length 148 | self.hrt_data = [0] * self.graphs_length 149 | self.brt_plot2 = self.brt_plot.plot(self.brt_data, pen=pg.mkPen('c', width=1)) 150 | self.gsr_plot2 = self.gsr_plot.plot(self.gsr_data, pen=pg.mkPen('g', width=1)) 151 | self.hrt_plot2 = self.hrt_plot.plot(self.hrt_data, pen=pg.mkPen('r', width=1)) 152 | self.brt_plot.showGrid(x=True, y=True, alpha=1) 153 | self.gsr_plot.showGrid(x=True, y=True, alpha=1) 154 | self.hrt_plot.showGrid(x=True, y=True, alpha=1) 155 | self.brt_plot.setLabel(axis="left", text="BREATH") 156 | self.gsr_plot.setLabel(axis="left", text="GSR") 157 | self.hrt_plot.setLabel(axis="left", text="PULSE") 158 | self.brt_reset_scale() 159 | self.gsr_reset_scale() 160 | self.hrt_reset_scale() 161 | 162 | def set_btn_functions(self): # Defines what function is called upon the press of a button. 163 | self.help_btn.clicked.connect(self.show_help) 164 | 165 | self.ser_connect_btn.clicked.connect(self.ser_connect) 166 | self.ser_start_btn.clicked.connect(lambda: self.start_stop(True)) 167 | self.ser_stop_btn.clicked.connect(lambda: self.start_stop(False)) 168 | 169 | self.brt_scale_btn.clicked.connect(self.brt_reset_scale) 170 | self.gsr_scale_btn.clicked.connect(self.gsr_reset_scale) 171 | self.hrt_scale_btn.clicked.connect(self.hrt_reset_scale) 172 | 173 | self.load_qtns_btn.clicked.connect(self.load_qtns) 174 | 175 | self.open_exam_btn.clicked.connect(self.open_exam) 176 | 177 | self.new_exam_btn.clicked.connect(self.new_exam) 178 | 179 | self.hrt_beep_btn.clicked.connect(self.hrt_beep) 180 | 181 | self.exam_advance_btn.clicked.connect(self.exam_view_advance_graphs) 182 | self.exam_reverse_btn.clicked.connect(self.exam_view_reverse_graphs) 183 | 184 | # ################################################################# 185 | # LOGIC FUNCTIONS # 186 | # ################################################################# 187 | 188 | # ################ Open exam file & exam view mode ############################ 189 | 190 | def open_exam(self): 191 | sender = self.open_exam_btn 192 | 193 | if self.new_exam_btn.text() == "Close / Save": 194 | self.end_exam() 195 | if self.graph_running: 196 | self.start_stop(False) 197 | 198 | self.reset_exam_variables() 199 | self.reset_qtn_ans_markers() 200 | self.reset_graphs() 201 | 202 | if sender.text() == "Open exam": 203 | self.exam_file_name = QFileDialog.getOpenFileName(self,'Open File',os.getenv('HOME'),"Text files (*.txt)") 204 | 205 | if self.exam_file_name[0] != "": 206 | 207 | self.record_exam_data = False 208 | self.acquisition_mode = False 209 | self.view_exam_mode = True 210 | try: 211 | with open(self.exam_file_name[0], 'r') as f: 212 | exam_file_list = f.read().split('\n') 213 | exam_file_list = exam_file_list[2][1:-1].split('][') 214 | try: 215 | self.exam_brt_data = [int(x) for x in exam_file_list[0].split(', ')] 216 | self.exam_gsr_data = [int(x) for x in exam_file_list[1].split(', ')] 217 | self.exam_hrt_data = [int(x) for x in exam_file_list[2].split(', ')] 218 | except ValueError: 219 | self.exam_brt_data = [] 220 | self.exam_gsr_data = [] 221 | self.exam_hrt_data = [] 222 | 223 | try: 224 | self.exam_qtn_markers_start = [int(x) for x in exam_file_list[3].split(', ')] 225 | self.exam_qtn_markers_end = [int(x) for x in exam_file_list[4].split(', ')] 226 | self.exam_qtn_markers_lbl = exam_file_list[5].split(', ') 227 | except ValueError: 228 | self.exam_qtn_markers_start = [] 229 | self.exam_qtn_markers_end = [] 230 | self.exam_qtn_markers_lbl = [] 231 | 232 | try: 233 | self.exam_answer_markers_pos = [int(x) for x in exam_file_list[6].split(', ')] 234 | self.exam_answer_markers_lbl = exam_file_list[7].split(', ') 235 | except ValueError: 236 | self.exam_answer_markers_pos = [] 237 | self.exam_answer_markers_lbl = [] 238 | 239 | sender.setText("Close exam") 240 | 241 | except: 242 | self.show_error_message("Invalid exam file") 243 | 244 | else: 245 | print("No file chosen") 246 | 247 | else: 248 | sender.setText("Open exam") 249 | self.question_lbl.setText("No questions loaded") 250 | self.record_exam_data = False 251 | self.acquisition_mode = True 252 | self.view_exam_mode = False 253 | 254 | self.update() 255 | 256 | # Advance and reverse graphs in exam view mode. 257 | def exam_view_reverse_graphs(self): 258 | if self.view_exam_mode: 259 | for i in range(10): # Make advance and reverse faster. 260 | self.update() 261 | if self.time_pos > 0: 262 | self.time_pos -= 1 263 | self.plot_data([self.exam_brt_data[self.time_pos - 1], self.exam_gsr_data[self.time_pos - 1], 264 | self.exam_hrt_data[self.time_pos - 1]], False) 265 | else: 266 | print("Time = 0") 267 | 268 | def exam_view_advance_graphs(self): 269 | if self.view_exam_mode: 270 | for i in range(10): 271 | self.update() 272 | if self.time_pos < (len(self.exam_brt_data)): 273 | self.time_pos += 1 274 | self.plot_data([self.exam_brt_data[self.time_pos - 1], self.exam_gsr_data[self.time_pos - 1], 275 | self.exam_hrt_data[self.time_pos - 1]], True) 276 | else: 277 | print("End of exam data") 278 | 279 | # Add and update qtn and ans markers during exam view mode 280 | def exam_view_add_qtn_ans_markers(self): 281 | for i in self.exam_qtn_markers_end: 282 | if i == self.time_pos: 283 | index = self.exam_qtn_markers_end.index(i) 284 | self.add_qtn_marker(self.exam_qtn_markers_start[index], i, self.exam_qtn_markers_lbl[index]) 285 | 286 | for i in self.exam_answer_markers_pos: 287 | if i == self.time_pos: 288 | index = self.exam_answer_markers_pos.index(i) 289 | self.add_ans_marker(i, self.exam_answer_markers_lbl[index]) 290 | 291 | # ################ Saving exam data & record exam mode ######################### 292 | def new_exam(self): 293 | if self.open_exam_btn.text() == "Close exam": 294 | self.open_exam() 295 | sender = self.sender() 296 | if sender.text() == "New exam": 297 | self.reset_exam_variables() 298 | self.exam_file_name = QFileDialog.getSaveFileName(self, 'Save File', os.getenv('HOME'),"Text files (*.txt)") 299 | if self.exam_file_name[0] != "": 300 | self.exam_mode() 301 | self.reset_graphs() 302 | self.reset_qtn_ans_markers() 303 | sender.setText("Close / Save") 304 | else: 305 | self.end_exam() 306 | 307 | # ################ Finalize exam and save data to a file ######################### 308 | def end_exam(self): 309 | if self.record_exam_data: 310 | self.add_ans_marker(self.time_pos, "EXAM END") 311 | self.qtn_being_asked = True 312 | self.qtn_asked = False 313 | self.question_lbl.setText("--End of the Exam--") 314 | self.start_stop(False) 315 | 316 | self.accept_questions = False 317 | 318 | # Marks exam end and avoids repetition of "EXAM END" label when reading file. 319 | self.exam_brt_data.append(0) 320 | self.exam_gsr_data.append(0) 321 | self.exam_hrt_data.append(0) 322 | 323 | with open(self.exam_file_name[0], 'w') as f: # Write all data to the file. 324 | f.write("----Exam file----\n") 325 | f.write("Includes brt, gsr & hrt data, and position & label of questions and answers\n") 326 | 327 | f.write(str(self.exam_brt_data)) 328 | f.write(str(self.exam_gsr_data)) 329 | f.write(str(self.exam_hrt_data)) 330 | 331 | f.write(str(self.exam_qtn_markers_start)) 332 | f.write(str(self.exam_qtn_markers_end)) 333 | f.write(str(self.exam_qtn_markers_lbl)) 334 | 335 | f.write(str(self.exam_answer_markers_pos)) 336 | f.write(str(self.exam_answer_markers_lbl)) 337 | 338 | self.demo_mode() 339 | self.new_exam_btn.setText("New exam") 340 | 341 | # ################ Record data into lists to be latter saved ######################### 342 | def record_plot_data(self, reading): # Records graph data. 343 | try: 344 | self.exam_brt_data.append(reading[0]) 345 | self.exam_gsr_data.append(reading[1]) 346 | self.exam_hrt_data.append(reading[2]) 347 | 348 | except: 349 | self.exam_brt_data.append(0) 350 | self.exam_gsr_data.append(0) 351 | self.exam_hrt_data.append(0) 352 | 353 | def record_qtns_data(self, start, end, label): # Records question markers data. 354 | self.exam_qtn_markers_start.append(start) 355 | self.exam_qtn_markers_end.append(end) 356 | self.exam_qtn_markers_lbl.append(label) 357 | 358 | def record_ans_data(self, pos, label): # Record answer markers data. 359 | self.exam_answer_markers_pos.append(pos) 360 | self.exam_answer_markers_lbl.append(label) 361 | 362 | # ############### Question File Handling ############################## 363 | 364 | # Uses the QFileDialog to get the name and the location of the question file 365 | def load_qtns(self): 366 | if self.record_exam_data: 367 | self.qtns_file_name = QFileDialog.getOpenFileName(self, 'Open File', os.getenv('HOME'), 368 | "Text files (*.txt)") 369 | 370 | if self.qtns_file_name[0] != "": 371 | with open(self.qtns_file_name[0], 'r') as f: 372 | self.qtns_list = f.read().split('\n') 373 | if len(self.qtns_list) >= 3: 374 | self.question_lbl.setText(self.qtns_list[2]) 375 | print("Question set: " + str(self.qtns_file_name[0]) + " loaded") 376 | 377 | self.accept_questions = True 378 | self.qtn_asked = False 379 | self.qtn_being_asked = False 380 | self.num_qtns = 0 381 | self.ans_answered = True 382 | else: 383 | self.show_error_message("Invalid question file") 384 | else: 385 | print("No file chosen") 386 | else: 387 | self.show_error_message("No questions can be loaded outside exam mode") 388 | 389 | # Reads the questions file and returns the next question 390 | def get_next_qtn(self): 391 | try: 392 | if self.view_exam_mode: 393 | qtn_text = self.exam_qtn_markers_lbl[self.num_qtns - 1][1:-1] 394 | else: 395 | qtn_text = self.qtns_list[2 + self.num_qtns] 396 | if qtn_text != "": 397 | return qtn_text 398 | else: 399 | self.accept_questions = False 400 | self.qtn_asked = True 401 | return "---End of the questions---" 402 | except: 403 | return "No Question File" 404 | 405 | # ################# Question & answer markers ###################### 406 | 407 | # Adds question marker at required position 408 | def add_qtn_marker(self, start, stop, label): 409 | self.brt_qtn_reg.append(pg.LinearRegionItem(values=[start, stop], movable=False)) 410 | 411 | self.gsr_qtn_reg.append(pg.LinearRegionItem(values=[start, stop], movable=False)) 412 | pg.InfLineLabel(self.gsr_qtn_reg[self.num_qtns].lines[1], label, position=0.5, rotateAxis=(1, 0)) 413 | 414 | self.hrt_qtn_reg.append(pg.LinearRegionItem(values=[start, stop], movable=False)) 415 | 416 | self.brt_plot.addItem(self.brt_qtn_reg[self.num_qtns]) 417 | self.gsr_plot.addItem(self.gsr_qtn_reg[self.num_qtns]) 418 | self.hrt_plot.addItem(self.hrt_qtn_reg[self.num_qtns]) 419 | 420 | self.num_qtns += 1 421 | 422 | # Ads answer marker at required position 423 | def add_ans_marker(self, position, lbl): 424 | if self.qtn_asked or lbl == "EXAM END" or self.view_exam_mode: 425 | 426 | if self.record_exam_data: 427 | self.record_ans_data(position, lbl) 428 | 429 | self.brt_ans_lin.append(pg.InfiniteLine(pos=position, movable=False, angle=90, 430 | labelOpts={'position': 0.5, 'color': (200, 200, 100), 431 | 'fill': (200, 200, 200, 50), 'movable': False})) 432 | self.gsr_ans_lin.append(pg.InfiniteLine(pos=position, movable=False, angle=90, label=lbl, 433 | labelOpts={'position': 0.5, 'color': (200, 200, 100), 434 | 'fill': (200, 200, 200, 50), 'movable': False})) 435 | self.hrt_ans_lin.append(pg.InfiniteLine(pos=position, movable=False, angle=90, 436 | labelOpts={'position': 0.5, 'color': (200, 200, 100), 437 | 'fill': (200, 200, 200, 50), 'movable': False})) 438 | 439 | if lbl != "EXAM END" or not self.qtn_asked: 440 | self.question_lbl.setText(self.get_next_qtn()) 441 | 442 | self.brt_plot.addItem(self.brt_ans_lin[-1]) 443 | self.gsr_plot.addItem(self.gsr_ans_lin[-1]) 444 | self.hrt_plot.addItem(self.hrt_ans_lin[-1]) 445 | 446 | self.qtn_asked = False 447 | self.ans_answered = True 448 | 449 | # Removes questions and answer markers when they reach the end of the graph 450 | def rem_qtn_ans_markers(self): 451 | for i in range(len(self.gsr_qtn_reg)): 452 | if (self.gsr_qtn_reg[i].getRegion()[0] < (self.time_pos - self.graphs_length)) or \ 453 | (self.gsr_qtn_reg[i].getRegion()[1] > self.time_pos): 454 | self.brt_plot.removeItem(self.brt_qtn_reg[i]) 455 | self.gsr_plot.removeItem(self.gsr_qtn_reg[i]) 456 | self.hrt_plot.removeItem(self.hrt_qtn_reg[i]) 457 | 458 | for j in range(len(self.gsr_ans_lin)): 459 | if (self.gsr_ans_lin[j].getXPos() < (self.time_pos - self.graphs_length)) or \ 460 | (self.gsr_ans_lin[j].getXPos() > self.time_pos): 461 | self.brt_plot.removeItem(self.brt_ans_lin[j]) 462 | self.gsr_plot.removeItem(self.gsr_ans_lin[j]) 463 | self.hrt_plot.removeItem(self.hrt_ans_lin[j]) 464 | 465 | # Handles question marker timing and region 466 | def update_qtn_marker(self): 467 | if self.graph_running and self.accept_questions: 468 | if self.qtn_being_asked: 469 | qtn_lbl = self.get_next_qtn() 470 | if self.record_exam_data: 471 | self.record_qtns_data(self.start_qtn_pos, self.time_pos, qtn_lbl) 472 | if len(qtn_lbl) > 38: 473 | qtn_lbl = qtn_lbl[:35] + "..." 474 | 475 | self.add_qtn_marker(self.start_qtn_pos, self.time_pos, qtn_lbl) 476 | self.qtn_being_asked = False 477 | self.qtn_asked = True 478 | 479 | elif self.ans_answered: 480 | self.start_qtn_pos = self.time_pos 481 | self.qtn_being_asked = True 482 | self.ans_answered = False 483 | 484 | # ################# Arduino and serial port ########################## 485 | 486 | # Connect with arduino 487 | def ser_connect(self): 488 | global arduino 489 | sender = self.sender() 490 | if sender.text() == "Connect": 491 | try: 492 | arduino = serial.Serial(self.port_name_le.text(), '115200') 493 | self.ser_connect_btn.setText("Disconnect") 494 | except: 495 | self.show_error_message("Port not found") 496 | else: 497 | try: 498 | arduino.write(b'000') 499 | arduino.close() 500 | except: 501 | self.show_error_message("Polygraph was not connected") 502 | self.ser_connect_btn.setText("Connect") 503 | 504 | # Start or stop arduino transmission 505 | def start_stop(self, start): 506 | if self.ser_connect_btn.text() == "Disconnect": 507 | global arduino 508 | if start: 509 | try: 510 | arduino.write(b'111') 511 | self.graph_running = True 512 | except: 513 | self.show_error_message("Polygraph not connected") 514 | arduino.close() 515 | self.ser_connect_btn.setText("Connect") 516 | else: 517 | try: 518 | arduino.write(b'000') 519 | except: 520 | self.show_error_message("Polygraph not connected") 521 | arduino.close() 522 | self.ser_connect_btn.setText("Connect") 523 | self.graph_running = False 524 | 525 | # Loop that reads serial port from arduino 526 | def arduino_read(self): 527 | 528 | if self.ser_connect_btn.text() == "Disconnect" and arduino.in_waiting > 18: 529 | reading = self.to_list(str(arduino.read(arduino.in_waiting))) 530 | self.plot_data(reading, True) 531 | self.time_pos += 1 532 | 533 | if self.record_exam_data: 534 | self.record_plot_data(reading) 535 | 536 | # Convert the string sent by the arduino to a python list. 537 | def to_list(self, string): 538 | try: 539 | str_list = string[string.index('(') + 1:string.index(')')].split(",") 540 | return [int(x) for x in str_list] 541 | except ValueError: 542 | print("ERROR-to_list") 543 | 544 | # ################## Graphing and scales ################################ 545 | 546 | # Plot data and update data lists 547 | def plot_data(self, data_plot, forward): 548 | try: 549 | if forward: 550 | self.brt_data[:- 1] = self.brt_data[1:] 551 | self.brt_data[-1] = data_plot[0] 552 | 553 | self.gsr_data[:- 1] = self.gsr_data[1:] 554 | self.gsr_data[-1] = data_plot[1] 555 | 556 | self.hrt_data[:-1] = self.hrt_data[1:] 557 | self.hrt_data[-1] = data_plot[2] 558 | 559 | else: 560 | self.brt_data[1:] = self.brt_data[:-1] 561 | self.gsr_data[1:] = self.gsr_data[:-1] 562 | self.hrt_data[1:] = self.hrt_data[:-1] 563 | 564 | if self.time_pos > self.graphs_length: 565 | self.brt_data[0] = data_plot[0] 566 | self.gsr_data[0] = data_plot[1] 567 | self.hrt_data[0] = data_plot[2] 568 | 569 | self.brt_plot2.setData(self.brt_data) 570 | self.brt_plot2.setPos(int(self.time_pos - self.graphs_length), 0) 571 | 572 | self.gsr_plot2.setData(self.gsr_data) 573 | self.gsr_plot2.setPos(int(self.time_pos - self.graphs_length), 0) 574 | 575 | self.hrt_plot2.setData(self.hrt_data) 576 | self.hrt_plot2.setPos(int(self.time_pos - self.graphs_length), 0) 577 | 578 | 579 | # Calculate and display rates & values on displays 580 | 581 | # Breath rate: 582 | brt_max = max(self.brt_data[-50:]) 583 | brt_min = min(self.brt_data[-50:]) 584 | brt_amp = brt_max - brt_min 585 | brt_up_th = brt_min + 0.55 * brt_amp 586 | brt_low_th = brt_min + 0.45 * brt_amp 587 | 588 | if data_plot[0] > brt_up_th and self.brt_was_below_th: 589 | self.brt_prev_above = self.brt_last_above 590 | self.brt_last_above = self.time_pos 591 | self.brt_was_below_th = False 592 | 593 | elif data_plot[0] < brt_low_th: 594 | self.brt_was_below_th = True 595 | 596 | if (self.brt_last_above - self.brt_prev_above) != 0: 597 | brt_rate = abs(600 / (self.brt_last_above - self.brt_prev_above)) 598 | else: 599 | brt_rate = 0 600 | 601 | self.brt_lcd.display(int(brt_rate)) 602 | 603 | self.gsr_lcd.display(data_plot[1]) 604 | 605 | # Heart rate: 606 | hrt_max = max(self.hrt_data[-30:]) 607 | hrt_min = min(self.hrt_data[-30:]) 608 | hrt_amp = hrt_max - hrt_min 609 | hrt_up_th = hrt_min + 0.55*hrt_amp 610 | hrt_low_th = hrt_min + 0.45*hrt_amp 611 | 612 | if data_plot[2] > hrt_up_th and self.hrt_was_below_th: 613 | self.hrt_prev_above = self.hrt_last_above 614 | self.hrt_last_above = self.time_pos 615 | self.hrt_was_below_th = False 616 | 617 | # Play sound if beep enabled and sufficient amplitude for a valid reading. 618 | if self.hrt_sound and 30 < hrt_amp < 600: 619 | winsound.PlaySound('heart_beep.wav', winsound.SND_ASYNC) 620 | 621 | elif data_plot[2] < hrt_low_th: 622 | self.hrt_was_below_th = True 623 | 624 | # Calculate heart rate 625 | if 30 < hrt_amp < 600: 626 | if (self.hrt_last_above - self.hrt_prev_above) != 0: 627 | curr_rate = abs(600/(self.hrt_last_above - self.hrt_prev_above)) 628 | 629 | self.hrt_prev_rates[:-1] = self.hrt_prev_rates[1:] 630 | self.hrt_prev_rates[-1] = curr_rate 631 | 632 | # Just adding some averaging in 633 | hrt_rate = int(sum(self.hrt_prev_rates)/len(self.hrt_prev_rates)) 634 | else: 635 | hrt_rate = 0 636 | else: 637 | hrt_rate = 0 638 | 639 | self.hrt_lcd.display(hrt_rate) 640 | 641 | except: 642 | print("ERROR-plot_data") 643 | 644 | # Pulse-Marking beep on/off 645 | def hrt_beep(self): 646 | if self.hrt_beep_btn.text() == "Beep ON": 647 | self.hrt_sound = True 648 | self.hrt_beep_btn.setText("Beep OFF") 649 | else: 650 | self.hrt_sound = False 651 | self.hrt_beep_btn.setText("Beep ON") 652 | 653 | # Reset graph scales 654 | def brt_reset_scale(self): 655 | self.brt_plot.setRange(yRange=[0, 1023]) 656 | 657 | def gsr_reset_scale(self): 658 | self.gsr_plot.setRange(yRange=[0, 1023]) 659 | 660 | def hrt_reset_scale(self): 661 | self.hrt_plot.setRange(yRange=[0, 1023]) 662 | 663 | # Updates time shown on the "lcd" display 664 | def update_time_display(self): 665 | minutes = int(self.time_pos / 600) 666 | seconds = int((self.time_pos % 600.0) / 10) 667 | 668 | self.min_lcd.display(minutes) 669 | self.sec_lcd.display(seconds) 670 | 671 | # ############### Update timers & key presses ################ 672 | 673 | # Handles key presses 674 | def keyPressEvent(self, event): 675 | key = event.key() 676 | if key == Qt.Key_Q: # Adds question marker (start, end) 677 | self.update_qtn_marker() 678 | elif key == Qt.Key_Y: # Adds "YES" answer marker. 679 | self.add_ans_marker(self.time_pos, "YES") 680 | elif key == Qt.Key_N: # Adds "NO" answer marker. 681 | self.add_ans_marker(self.time_pos, "NO") 682 | elif key == Qt.Key_E: # Ends exam and saves file. 683 | self.end_exam() 684 | elif key == Qt.Key_Left: # On exam view mode, backs up graphs. 685 | self.exam_view_reverse_graphs() 686 | elif key == Qt.Key_Right: # On exam view mode, advances graphs. 687 | self.exam_view_advance_graphs() 688 | 689 | # Updates all needed functions 20 times per second 690 | def update(self): 691 | if self.acquisition_mode: 692 | try: 693 | self.arduino_read() 694 | self.update_time_display() 695 | self.rem_qtn_ans_markers() 696 | finally: 697 | timer.singleShot(50, self.update) 698 | if self.view_exam_mode: 699 | self.exam_view_add_qtn_ans_markers() 700 | self.update_time_display() 701 | self.rem_qtn_ans_markers() 702 | 703 | # Displays an additional window with instructions and information. 704 | def show_help(self): 705 | msg = QMessageBox() 706 | msg.setIcon(QMessageBox.Information) 707 | 708 | msg.setWindowTitle("Help") 709 | msg.setText("Quick start guide:") 710 | msg.setInformativeText("1) Connect with polygraph:" 711 | "\n -Enter port name." 712 | "\n -Press Connect." 713 | "\n -Use Start and Stop to start and stop the transmission." 714 | "\n\n2) Record an exam:" 715 | "\n -Create a .txt question file: 2 lines for notes and each question in a new line. " 716 | "\n -Press the New exam button and chose a file name, press Save." 717 | "\n -Click Load question set and choose the question file." 718 | "\n -Connect and press Start." 719 | "\n -Press Q key, read question and press again. Press Y and N for answer markers." 720 | "\n -Questions will automatically update." 721 | "\n -Press E key or click Close/Save to end the exam." 722 | "\n\n3) Open exam:" 723 | "\n -Click Open exam and choose file." 724 | "\n -Use arrow keys or < > buttons to move through the file." 725 | "\n -Press Close exam to exit." 726 | "\n\n4) Miscellaneous:" 727 | "\n -To zoom in the graph, use ctrl and mouse." 728 | "\n -To return to auto-scaling, click the A button on the bottom left of each graph." 729 | "\n -For fixed scale, click Reset scale." 730 | "\n -To enable or disable the pulse Beep, click Beep ON or Beep OFF.") 731 | 732 | msg.setDetailedText("USB Polygraph Software V.1.13 by Juan Gg on June 2018 \n" + 733 | "\nThis work is licensed under GNU General Public License v3.0" + 734 | "\n\nhttps://juangg-projects.blogspot.com/") 735 | msg.setStandardButtons(QMessageBox.Ok | QMessageBox.Cancel) 736 | msg.exec_() 737 | 738 | # Shows the user a pop-up window with the error message. 739 | def show_error_message(self, text): 740 | msg = QMessageBox() 741 | msg.setIcon(QMessageBox.Critical) 742 | msg.setWindowTitle("Error") 743 | msg.setText(text) 744 | msg.setStandardButtons(QMessageBox.Ok) 745 | msg.exec_() 746 | 747 | 748 | # Create an instance of the class and start the program 749 | if __name__ == "__main__": 750 | app = QtWidgets.QApplication(sys.argv) 751 | timer = QtCore.QTimer() 752 | pLogic = PolygraphLogic() 753 | pLogic.update() 754 | sys.exit(app.exec_()) 755 | -------------------------------------------------------------------------------- /Software/USBPolygraphDesktop/heart_beep.wav: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Juan-Gg/USB_Polygraph/7efd55b1525010ad65d42b49fb37ec8cf92fdbc2/Software/USBPolygraphDesktop/heart_beep.wav -------------------------------------------------------------------------------- /Software/USBPolygraphDesktop/logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Juan-Gg/USB_Polygraph/7efd55b1525010ad65d42b49fb37ec8cf92fdbc2/Software/USBPolygraphDesktop/logo.png --------------------------------------------------------------------------------